Security update for xen

SUSE Security Update: Security update for xen
Announcement ID: SUSE-SU-2017:2450-1
Rating: important
References: #1027519 #1032598 #1037413 #1046637 #1047675 #1048920 #1049578 #1051787 #1051788 #1052686 #1056278 #1056281 #1056282
Affected Products:
  • SUSE Linux Enterprise Software Development Kit 11-SP4
  • SUSE Linux Enterprise Server 11-SP4
  • SUSE Linux Enterprise Debuginfo 11-SP4
    		•

    An update that solves 10 vulnerabilities and has three fixes is now available.

    Description:

    This update for xen fixes several issues.

    These security issues were fixed:

    - CVE-2017-12135: Unbounded recursion in grant table code allowed a
    malicious guest to crash the host or potentially escalate
    privileges/leak information (XSA-226, bsc#1051787).
    - CVE-2017-12137: Incorrectly-aligned updates to pagetables allowed for
    privilege escalation (XSA-227, bsc#1051788).
    - CVE-2017-11334: The address_space_write_continue function in exec.c
    allowed local guest OS privileged users to cause a denial of service
    (out-of-bounds access and guest instance crash) by leveraging use of
    qemu_map_ram_ptr to access guest ram block area (bsc#1048920).
    - CVE-2017-11434: The dhcp_decode function in slirp/bootp.c allowed local
    guest OS users to cause a denial of service (out-of-bounds read) via a
    crafted DHCP
    options string (bsc#1049578).
    - CVE-2017-10806: Stack-based buffer overflow in hw/usb/redirect.c allowed
    local guest OS users to cause a denial of service via vectors related to
    logging debug messages (bsc#1047675).
    - CVE-2017-10664: qemu-nbd did not ignore SIGPIPE, which allowed remote
    attackers to cause a denial of service (daemon crash) by disconnecting
    during a server-to-client reply attempt (bsc#1046637).
    - CVE-2017-12855: Premature clearing of GTF_writing / GTF_reading lead to
    potentially leaking sensitive information (XSA-230, bsc#1052686).
    - CVE-2017-14316: Missing bound check in function `alloc_heap_pages` for
    an internal array allowed attackers using crafted hypercalls to execute
    arbitrary code within Xen (XSA-231, bsc#1056278)
    - CVE-2017-14317: A race in cxenstored may have cause a double-free
    allowind for DoS of the xenstored daemon (XSA-233, bsc#1056281).
    - CVE-2017-14319: An error while handling grant mappings allowed malicious
    or buggy x86 PV guest to escalate its privileges or crash the hypervisor
    (XSA-234, bsc#1056282).

    This non-security issue was fixed:

    - bsc#1032598: Prevent removal of NVME devices
    - bsc#1037413: Support for newer intel cpu's, mwait-idle driver and skylake

    Patch Instructions:

    To install this SUSE Security Update use YaST online_update.
    Alternatively you can run the command listed for your product:

    • SUSE Linux Enterprise Software Development Kit 11-SP4:
      zypper in -t patch sdksp4-xen-13281=1
    • SUSE Linux Enterprise Server 11-SP4:
      zypper in -t patch slessp4-xen-13281=1
    • SUSE Linux Enterprise Debuginfo 11-SP4:
      zypper in -t patch dbgsp4-xen-13281=1

    To bring your system up-to-date, use "zypper patch".

    Package List:

    • SUSE Linux Enterprise Software Development Kit 11-SP4 (i586 x86_64):
      • xen-devel-4.4.4_22-61.9.2
    • SUSE Linux Enterprise Server 11-SP4 (i586 x86_64):
      • xen-kmp-default-4.4.4_22_3.0.101_108.7-61.9.2
      • xen-libs-4.4.4_22-61.9.2
      • xen-tools-domU-4.4.4_22-61.9.2
    • SUSE Linux Enterprise Server 11-SP4 (x86_64):
      • xen-4.4.4_22-61.9.2
      • xen-doc-html-4.4.4_22-61.9.2
      • xen-libs-32bit-4.4.4_22-61.9.2
      • xen-tools-4.4.4_22-61.9.2
    • SUSE Linux Enterprise Server 11-SP4 (i586):
      • xen-kmp-pae-4.4.4_22_3.0.101_108.7-61.9.2
    • SUSE Linux Enterprise Debuginfo 11-SP4 (i586 x86_64):
      • xen-debuginfo-4.4.4_22-61.9.2
      • xen-debugsource-4.4.4_22-61.9.2

    References: